Except for the fascist anti-smoking laws that has put bars and restaurants out of business and caused a drop in tax revenue, the high property, sales(8.625), and income taxes (and 14 percent occupancy tax for a hotel room), the enormous high cost of living, the oppressive anti-business and jobs climate, the hugely enormous welfare and medicare system that real working people are forced to carry on their backs (as well as dung covered "art"), the gun control laws in which only the rich, famous, or politically connected are allowed to get a permit, the rent control laws which has sent the cost of rental housing sky high, the worst schools (among the worst test scores and the highest truancy and drop out rates) in the nation where the teachers unions have more say in the education of your kids than you do, liberal politicians who don't give a hang about the people they are supposed to represent, soft on crime liberal judges, appointed by the liberal politicians, who are famous for slapping violent felons on the hand (if that) and puts them out on the street again, it's once famous tourist attractions (like Coney Island) are now broken down shadows of their former selves, etc., etc.
All except that, I can't see why anyone would want to leave Brooklyn.